3 - ovs-ofctl can now accept and display port names in place of numbers. By
4 default it always accepts names and in interactive use it displays them;
5 use --names or --no-names to override. See ovs-ofctl(8) for details.
7 * Added support to set packet mark for tunnel endpoint using
8 `egress_pkt_mark` OVSDB option.
9 * When using Linux kernel datapath tunnels may be created using rtnetlink.
10 This will allow us to take advantage of new tunnel features without
11 having to make changes to the vport modules.
12 - EMC insertion probability is reduced to 1% and is configurable via
13 the new 'other_config:emc-insert-inv-prob' option.
15 * DPDK log messages redirected to OVS logging subsystem.
16 Log level can be changed in a usual OVS way using
17 'ovs-appctl vlog' commands for 'dpdk' module. Lower bound
18 still can be configured via extra arguments for DPDK EAL.
19 - IPFIX now provides additional counters:
20 * Total counters since metering process startup.
21 * Per-flow TCP flag counters.
22 - New support for multiple VLANs (802.1ad or "QinQ"), including a new
23 "dot1q-tunnel" port VLAN mode.
24 - In ovn-vsctl and vtep-ctl, record UUIDs in commands may now be
25 abbreviated to 4 hex digits.
27 * Added NAT support for userspace datapath.
29 * New built-in DNS support.
30 * IPAM for IPv4 can now exclude user-defined addresses from assignment.
31 * IPAM can now assign IPv6 addresses.
32 * Make the DHCPv4 router setting optional.
33 * Gratuitous ARP for NAT addresses on a distributed logical router.
34 * Allow ovn-controller SSL configuration to be obtained from vswitchd
36 * ovn-trace now has basic support for tracing distributed firewalls.
37 * In ovn-nbctl and ovn-sbctl, record UUIDs in commands may now be
38 abbreviated to 4 hex digits.
39 * "ovn-sbctl lflow-list" can now print OpenFlow flows that correspond
41 * Now uses OVSDB RBAC support to reduce impact of compromised hypervisors.
43 * New support for role-based access control (see ovsdb-server(1)).
44 - Add the command 'ovs-appctl stp/show' (see ovs-vswitchd(8)).
46 * All features required by OpenFlow 1.4 are now implemented, so
47 ovs-vswitchd now enables OpenFlow 1.4 by default (in addition to
49 * Increased support for OpenFlow 1.6 (draft).
50 * Bundles now support hashing by just nw_src or nw_dst.
51 * The "learn" action now supports a "limit" option (see ovs-ofctl(8)).
52 * The port status bit OFPPS_LIVE now reflects link aliveness.
53 * OpenFlow 1.5 packet-out is now supported.
55 * OVN services are no longer restarted automatically after upgrade.
56 - Add --cleanup option to command 'ovs-appctl exit' (see ovs-vswitchd(8)).
58 * Add "layer3" options for tunnel ports that support non-Ethernet (L3)
59 payload (GRE, VXLAN-GPE).
60 * New vxlan tunnel extension "gpe" to support VXLAN-GPE tunnels.
61 * Transparently pop and push Ethernet headers at transmit/reception
62 of packets to/from L3 tunnels.
63 - The BFD detection multiplier is now user-configurable.
67 - Utilities and daemons that support SSL now allow protocols and
68 ciphers to be configured with --ssl-protocols and --ssl-ciphers.
70 * QoS is now implemented via egress shaping rather than ingress policing.
71 * DSCP marking is now supported, via the new northbound QoS table.
72 * IPAM now supports fixed MAC addresses.
73 * Support for source IP address based routing.
75 - New --ovs option to also print OpenFlow flows.
76 - put_dhcp_opts and put_dhcp_optsv6 actions may now be traced.
77 * Support for managing SSL and remote connection configuration in
78 northbound and southbound databases.
79 * TCP connections to northbound and southbound databases are no
80 longer enabled by default and must be explicitly configured.
81 See documentation for ovn-sbctl/ovn-nbctl "set-connection"
82 command or the ovn-ctl "--db-sb-create-insecure-remote" and
83 "--db-nb-create-insecure-remote" command-line options for
84 information regarding remote connection configuration.
85 * New appctl "inject-pkt" command in ovn-controller that allows
86 packets to be injected into the connected OVS instance.
87 * Distributed logical routers may now be connected directly to
88 logical switches with localnet ports, by specifying a
89 "redirect-chassis" on the distributed gateway port of the
90 logical router. NAT rules may be specified directly on the
91 distributed logical router, and are handled either centrally on
92 the "redirect-chassis", or in many cases are handled locally on
93 the hypervisor where the corresponding logical port resides.
94 Gratuitous ARP for NAT addresses on a distributed logical
95 router is not yet supported, but will be added in a future
97 - Fixed regression in table stats maintenance introduced in OVS
98 2.3.0, wherein the number of OpenFlow table hits and misses was
101 * OFPT_PACKET_OUT messages are now supported in bundles.
102 * A new "selection_method=dp_hash" type for OpenFlow select group
103 bucket selection that uses the datapath computed 5-tuple hash
104 without making datapath flows match the 5-tuple fields, which
105 is useful for more efficient load balancing, for example. This
106 uses the Netronome extension to OpenFlow 1.5+ that allows
107 control over the OpenFlow select groups selection method. See
108 "selection_method" and related options in ovs-ofctl(8) for
110 * The "sample" action now supports "ingress" and "egress" options.
111 * The "ct" action now supports the TFTP ALG where support is available.
112 * New actions "clone" and "ct_clear".
113 * The "meter" action is now supported in the userspace datapath.
115 * 'bundle' command now supports packet-out messages.
116 * New syntax for 'ovs-ofctl packet-out' command, which uses the
117 same string parser as the 'bundle' command. The old 'packet-out'
118 syntax is deprecated and will be removed in a later OVS
120 * New unixctl "ofctl/packet-out" command, which can be used to
121 instruct a flow monitor to issue OpenFlow packet-out messages.
123 * Remote connections can now be made read-only (see ovsdb-server(1)).
125 * TLV mappings for protocols such as Geneve are now segregated on
126 a per-OpenFlow bridge basis rather than globally. (The interface
128 * Removed support for IPsec tunnels.
130 * New option 'n_rxq_desc' and 'n_txq_desc' fields for DPDK interfaces
131 which set the number of rx and tx descriptors to use for the given port.
132 * Support for DPDK v16.11.
133 * Support for rx checksum offload. Refer DPDK HOWTO for details.
134 * Port Hotplug is now supported.
135 * DPDK physical ports can now have arbitrary names. The PCI address of
136 the device must be set using the 'dpdk-devargs' option. Compatibility
137 with the old dpdk<portid> naming scheme is broken, and as such a
138 device will not be available for use until a valid dpdk-devargs is
140 * Virtual DPDK Poll Mode Driver (vdev PMD) support.
141 * Removed experimental tag.
143 * A package upgrade does not automatically restart OVS service.
144 - ovs-vswitchd/ovs-vsctl:
145 * Ports now have a "protected" flag. Protected ports can not forward
146 frames to other protected ports. Unprotected ports can receive and
147 forward frames to protected and other unprotected ports.
148 - ovs-vsctl, ovn-nbctl, ovn-sbctl, vtep-ctl:
149 * Database commands now accept integer ranges, e.g. "set port
150 eth0 trunks=1-10" to enable trunking VLANs 1 to 10.
153 ---------------------
154 - First supported release of OVN. See ovn-architecture(7) for more
157 * New "monitor_cond" "monitor_cond_update" and "update2" extensions to
160 * OpenFlow 1.3+ bundles now expire after 10 seconds since the
161 last time the bundle was either opened, modified, or closed.
162 * OpenFlow 1.3 Extension 230, adding OpenFlow Bundles support, is
164 * OpenFlow 1.3+ bundles are now supported for group mods as well as
165 flow mods and port mods. Both 'atomic' and 'ordered' bundle
166 flags are supported for group mods as well as flow mods.
167 * Internal OpenFlow rule representation for load and set-field
168 actions is now much more memory efficient. For a complex flow
169 table this can reduce rule memory consumption by 40%.
170 * Bundles are now much more memory efficient than in OVS 2.5.
171 Together with memory efficiency improvements in OpenFlow rule
172 representation, the peak OVS resident memory use during a
173 bundle commit for large complex set of flow mods can be only
174 25% of that in OVS 2.5 (4x lower).
175 * OpenFlow 1.1+ OFPT_QUEUE_GET_CONFIG_REQUEST now supports OFPP_ANY.
176 * OpenFlow 1.4+ OFPMP_QUEUE_DESC is now supported.
177 * OpenFlow 1.4+ OFPT_TABLE_STATUS is now supported.
178 * New property-based packet-in message format NXT_PACKET_IN2 with support
179 for arbitrary user-provided data and for serializing flow table
180 traversal into a continuation for later resumption.
181 * New extension message NXT_SET_ASYNC_CONFIG2 to allow OpenFlow 1.4-like
182 control over asynchronous messages in earlier versions of OpenFlow.
183 * New OpenFlow extension NXM_NX_MPLS_TTL to provide access to MPLS TTL.
184 * New output option, output(port=N,max_len=M), to allow truncating a
185 packet to size M bytes when outputting to port N.
186 * New command OFPGC_ADD_OR_MOD for OFPT_GROUP_MOD message that adds a
187 new group or modifies an existing groups
188 * The optional OpenFlow packet buffering feature is deprecated in
189 this release, and will be removed in the next OVS release
190 (2.7). After the change OVS always sends the 'buffer_id' as
191 0xffffffff in packet-in messages and will send an error
192 response if any other value of this field is included in
193 packet-out and flow mod sent by a controller. Controllers are
194 already expected to work properly in cases where the switch can
195 not buffer packets, so this change should not affect existing
197 * New OpenFlow extension NXT_CT_FLUSH_ZONE to flush conntrack zones.
198 - Improved OpenFlow version compatibility for actions:
199 * New OpenFlow extension to support the "group" action in OpenFlow 1.0.
200 * OpenFlow 1.0 "enqueue" action now properly translated to OpenFlow 1.1+.
201 * OpenFlow 1.1 "mod_nw_ecn" and OpenFlow 1.1+ "mod_nw_ttl" actions now
202 properly translated to OpenFlow 1.0.
204 * queue-get-config command now allows a queue ID to be specified.
205 * '--bundle' option can now be used with OpenFlow 1.3 and with group mods.
206 * New "bundle" command allows executing a mixture of flow and group mods
207 as a single atomic transaction.
208 * New option "--color" to produce colorized output for some commands.
209 * New option '--may-create' to use OFPGC_ADD_OR_MOD in mod-group command.
211 * New "sampling_port" option for "sample" action to allow sampling
212 ingress and egress tunnel metadata with IPFIX.
213 * New ovs-ofctl commands "dump-ipfix-bridge" and "dump-ipfix-flow" to
214 dump bridge IPFIX statistics and flow based IPFIX statistics.
215 * New setting other-config:virtual_obs_id to add an arbitrary string
218 * OVS Linux datapath now implements Conntrack NAT action with all
219 supported Linux kernels.
220 * Support for truncate action.
221 * New QoS type "linux-noop" that prevents Open vSwitch from trying to
222 manage QoS for a given port (useful when other software manages QoS).
224 * New option "n_rxq" for PMD interfaces.
225 Old 'other_config:n-dpdk-rxqs' is no longer supported.
226 Not supported by vHost interfaces. For them number of rx and tx queues
227 is applied from connected virtio device.
228 * New 'other_config:pmd-rxq-affinity' field for PMD interfaces, that
229 allows to pin port's rx queues to desired cores.
230 * New appctl command 'dpif-netdev/pmd-rxq-show' to check the port/rxq
232 * Type of log messages from PMD threads changed from INFO to DBG.
233 * QoS functionality with sample egress-policer implementation.
234 * The mechanism for configuring DPDK has changed to use database
235 * Sensible defaults have been introduced for many of the required
236 configuration options
237 * DB entries have been added for many of the DPDK EAL command line
238 arguments. Additional arguments can be passed via the dpdk-extra
240 * Add ingress policing functionality.
241 * PMD threads servicing vHost User ports can now come from the NUMA
242 node that device memory is located on if CONFIG_RTE_LIBRTE_VHOST_NUMA
244 * Basic connection tracking for the userspace datapath (no ALG,
245 fragmentation or NAT support yet)
246 * Support for DPDK 16.07
247 * Optional support for DPDK pdump enabled.
248 * Jumbo frame support
249 * Remove dpdkvhostcuse port type.
250 * OVS client mode for vHost and vHost reconnect (Requires QEMU 2.7)
251 * 'dpdkvhostuserclient' port type.
252 - Increase number of registers to 16.
253 - ovs-benchmark: This utility has been removed due to lack of use and
256 * New "vlog/close" command.
258 * Added the ability to selectively start the forwarding and database
259 functions (ovs-vswitchd and ovsdb-server, respectively).
261 * Remove max number of sessions limit, to enable connection scaling
264 * Added support for Python 3.4+ in addition to existing support
267 * Introduced SELinux policy package.
268 - Datapath Linux kernel compatibility.
269 * Dropped support for kernel older than 3.10.
270 * Removed VLAN splinters feature.
271 * Datapath supports kernel upto 4.7.
273 * Flow based tunnel match and action can be used for IPv6 address using
274 tun_ipv6_src, tun_ipv6_dst fields.
275 * Added support for IPv6 tunnels, for details checkout FAQ.
276 * Deprecated support for IPsec tunnels ports.
277 - A wrapper script, 'ovs-tcpdump', to easily port-mirror an OVS port and
279 - Introduce --no-self-confinement flag that allows daemons to work with
280 sockets outside their run directory.
281 - ovs-pki: Changed message digest algorithm from SHA-1 to SHA-512 because
282 SHA-1 is no longer secure and some operating systems have started to
283 disable it in OpenSSL.
284 - Add 'mtu_request' column to the Interface table. It can be used to
285 configure the MTU of the ports.
288 - Using openvswitch module in conjunction with upstream Linux tunnels:
289 * When using the openvswitch module distributed with OVS against kernel
290 versions 4.4 to 4.6, the openvswitch module cannot be loaded or used at
291 the same time as "ip_gre".
292 - Conntrack FTP ALGs: When using the openvswitch module distributed with
293 OVS, particular Linux distribution kernels versions may provide diminished
294 functionality. This typically affects active FTP data connections when
295 using "actions=ct(alg=ftp),..." in flow tables. Specifically:
296 * Centos 7.1 kernels (3.10.0-2xx) kernels are unable to correctly set
297 up expectations for FTP data connections in multiple zones,
298 eg "actions=ct(zone=1,alg=ftp),ct(zone=2,alg=ftp),...". Executing the
299 "ct" action for subsequent data connections may fail to determine that
300 the data connection is "related" to an existing connection.
301 * Centos 7.2 kernels (3.10.0-3xx) kernels may not establish FTP ALG state
302 correctly for NATed connections. As a result, flows that perform NAT,
303 eg "actions=ct(nat,ftp=alg,table=1),..." may fail to NAT the packet,
304 and will populate the "ct_state=inv" bit in the flow.
308 ---------------------
309 - Dropped support for Python older than version 2.7. As a consequence,
310 using Open vSwitch 2.5 or later on XenServer 6.5 or earlier (which
311 have Python 2.4) requires first installing Python 2.7.
313 * Group chaining (where one OpenFlow group triggers another) is
315 * OpenFlow 1.4+ "importance" is now considered for flow eviction.
316 * OpenFlow 1.4+ OFPTC_EVICTION is now implemented.
317 * OpenFlow 1.4+ OFPTC_VACANCY_EVENTS is now implemented.
318 * OpenFlow 1.4+ OFPMP_TABLE_DESC is now implemented.
319 * Allow modifying the ICMPv4/ICMPv6 type and code fields.
320 * OpenFlow 1.4+ OFPT_SET_ASYNC_CONFIG and OFPT_GET_ASYNC_CONFIG are
323 * New "out_group" keyword for OpenFlow 1.1+ matching on output group.
325 * Geneve tunnels can now match and set options and the OAM bit.
326 * The nonstandard GRE64 tunnel extension has been dropped.
327 - Support Multicast Listener Discovery (MLDv1 and MLDv2).
328 - Add 'symmetric_l3l4' and 'symmetric_l3l4+udp' hash functions.
329 - sFlow agent now reports tunnel and MPLS structures.
330 - New 'check-system-userspace', 'check-kmod' and 'check-kernel' Makefile
331 targets to run a new system testsuite. These tests can be run inside
332 a Vagrant box. See INSTALL.md for details
333 - Mark --syslog-target argument as deprecated. It will be removed in
334 the next OVS release.
335 - Added --user option to all daemons
336 - Add support for connection tracking through the new "ct" action
337 and "ct_state"/"ct_zone"/"ct_mark"/"ct_label" match fields. Only
338 available on Linux kernels with the connection tracking module loaded.
339 - Add experimental version of OVN. OVN, the Open Virtual Network, is a
340 system to support virtual network abstraction. OVN complements the
341 existing capabilities of OVS to add native support for virtual network
342 abstractions, such as virtual L2 and L3 overlays and security groups.
344 * DPDK ports may now be created via network scripts (see README.RHEL).
347 * Added multiqueue support to vhost-user
348 * Note: QEMU 2.5+ required for multiqueue support
351 ---------------------
352 - Flow table modifications are now atomic, meaning that each packet
353 now sees a coherent version of the OpenFlow pipeline. For
354 example, if a controller removes all flows with a single OpenFlow
355 "flow_mod", no packet sees an intermediate version of the OpenFlow
356 pipeline where only some of the flows have been deleted.
357 - Added support for SFQ, FQ_CoDel and CoDel qdiscs.
358 - Add bash command-line completion support for ovs-vsctl Please check
359 utilities/ovs-command-compgen.INSTALL.md for how to use.
360 - The MAC learning feature now includes per-port fairness to mitigate
361 MAC flooding attacks.
362 - New support for a "conjunctive match" OpenFlow extension, which
363 allows constructing OpenFlow matches of the form "field1 in
364 {a,b,c...} AND field2 in {d,e,f...}" and generalizations. For details,
365 see documentation for the "conjunction" action in ovs-ofctl(8).
366 - Add bash command-line completion support for ovs-appctl/ovs-dpctl/
367 ovs-ofctl/ovsdb-tool commands. Please check
368 utilities/ovs-command-compgen.INSTALL.md for how to use.
369 - The "learn" action supports a new flag "delete_learned" that causes
370 the learned flows to be deleted when the flow with the "learn" action
372 - Basic support for the Geneve tunneling protocol. It is not yet
373 possible to generate or match options. This is planned for a future
374 release. The protocol is documented at
375 http://tools.ietf.org/html/draft-gross-geneve-00
376 - The OVS database now reports controller rate limiting statistics.
377 - sflow now exports information about LACP-based bonds, port names, and
378 OpenFlow port numbers, as well as datapath performance counters.
379 - ovs-dpctl functionality is now available for datapaths integrated
380 into ovs-vswitchd, via ovs-appctl. Some existing ovs-appctl
381 commands are now redundant and will be removed in a future
382 release. See ovs-vswitchd(8) for details.
384 * OpenFlow 1.4 bundles are now supported for flow mods and port
385 mods. For flow mods, both 'atomic' and 'ordered' bundle flags
386 are trivially supported, as all bundled messages are executed
387 in the order they were added and all flow table modifications
388 are now atomic to the datapath. Port mods may not appear in
389 atomic bundles, as port status modifications are not atomic.
390 * IPv6 flow label and neighbor discovery fields are now modifiable.
391 * OpenFlow 1.5 extended registers are now supported.
392 * The OpenFlow 1.5 actset_output field is now supported.
393 * OpenFlow 1.5 Copy-Field action is now supported.
394 * OpenFlow 1.5 masked Set-Field action is now supported.
395 * OpenFlow 1.3+ table features requests are now supported (read-only).
396 * Nicira extension "move" actions may now be included in action sets.
397 * "resubmit" actions may now be included in action sets. The resubmit
398 is executed last, and only if the action set has no "output" or "group"
400 * OpenFlow 1.4+ flow "importance" is now maintained in the flow table.
401 * A new Netronome extension to OpenFlow 1.5+ allows control over the
402 fields hashed for OpenFlow select groups. See "selection_method" and
403 related options in ovs-ofctl(8) for details.
404 - ovs-ofctl has a new '--bundle' option that makes the flow mod commands
405 ('add-flow', 'add-flows', 'mod-flows', 'del-flows', and 'replace-flows')
406 use an OpenFlow 1.4 bundle to operate the modifications as a single
407 atomic transaction. If any of the flow mods in a transaction fail, none
408 of them are executed. All flow mods in a bundle appear to datapath
409 lookups simultaneously.
410 - ovs-ofctl 'add-flow' and 'add-flows' commands now accept arbitrary flow
411 mods as an input by allowing the flow specification to start with an
412 explicit 'add', 'modify', 'modify_strict', 'delete', or 'delete_strict'
413 keyword. A missing keyword is treated as 'add', so this is fully
414 backwards compatible. With the new '--bundle' option all the flow mods
415 are executed as a single atomic transaction using an OpenFlow 1.4 bundle.
416 - ovs-pki: Changed message digest algorithm from MD5 to SHA-1 because
417 MD5 is no longer secure and some operating systems have started to disable
419 - ovsdb-server: New OVSDB protocol extension allows inequality tests on
420 "optional scalar" columns. See ovsdb-server(1) for details.
421 - ovs-vsctl now permits immutable columns in a new row to be modified in
422 the same transaction that creates the row.
423 - test-controller has been renamed ovs-testcontroller at request of users
424 who find it useful for testing basic OpenFlow setups. It is still not
425 a necessary or desirable part of most Open vSwitch deployments.
426 - Support for travis-ci.org based continuous integration builds has been
427 added. Build failures are reported to build@openvswitch.org. See INSTALL.md
428 file for additional details.
429 - Support for the Rapid Spanning Tree Protocol (IEEE 802.1D-2004).
430 The implementation has been tested successfully against the Ixia Automated
431 Network Validation Library (ANVL).
432 - Stats are no longer updated on fake bond interface.
433 - Keep active bond slave selection across OVS restart.
434 - A simple wrapper script, 'ovs-docker', to integrate OVS with Docker
435 containers. If and when there is a native integration of Open vSwitch
436 with Docker, the wrapper script will be retired.
437 - Added support for DPDK Tunneling. VXLAN, GRE, and Geneve are supported
438 protocols. This is generic tunneling mechanism for userspace datapath.
439 - Support for multicast snooping (IGMPv1, IGMPv2 and IGMPv3)
440 - Support for Linux kernels up to 4.0.x
441 - The documentation now use the term 'destination' to mean one of syslog,
442 console or file for vlog logging instead of the previously used term
444 - Support for VXLAN Group Policy extension
445 - Initial support for the IETF Auto-Attach SPBM draft standard. This
446 contains rudimentary support for the LLDP protocol as needed for
448 - The default OpenFlow and OVSDB ports are now the IANA-assigned
449 numbers. OpenFlow is 6653 and OVSDB is 6640.
450 - Support for DPDK vHost.
451 - Support for outer UDP checksums in Geneve and VXLAN.
452 - The kernel vports with dependencies are no longer part of the overall
453 openvswitch.ko but built and loaded automatically as individual kernel
454 modules (vport-*.ko).
455 - Support for STT tunneling.
456 - ovs-sim: New developer tool for simulating multiple OVS instances.
457 See ovs-sim(1) for more information.
458 - Support to configure method (--syslog-method argument) that determines
459 how daemons will talk with syslog.
460 - Support for "ovs-appctl vlog/list-pattern" command that lets to query
461 logging message format for each destination.
465 ---------------------
466 - OpenFlow 1.1, 1.2, and 1.3 are now enabled by default in
468 - Linux kernel datapath now has an exact match cache optimizing the
469 flow matching process.
470 - Datapath flows now have partially wildcarded tranport port field
471 matches. This reduces userspace upcalls, but increases the
472 number of different masks in the datapath. The kernel datapath
473 exact match cache removes the overhead of matching the incoming
474 packets with the larger number of masks, but when paired with an
475 older kernel module, some workloads may perform worse with the
477 - Compatibility with autoconf 2.63 (previously >=2.64)
479 v2.2.0 - Internal Release
480 ---------------------
481 - Internal ports are no longer brought up by default, because it
482 should be an administrator task to bring up devices as they are
484 - ovs-vsctl now reports when ovs-vswitchd fails to create a new port or
486 - Port creation and configuration errors are now stored in a new error
487 column of the Interface table and included in 'ovs-vsctl show'.
488 - The "ovsdbmonitor" graphical tool has been removed, because it was
489 poorly maintained and not widely used.
490 - New "check-ryu" Makefile target for running Ryu tests for OpenFlow
491 controllers against Open vSwitch. See INSTALL.md for details.
492 - Added IPFIX support for SCTP flows and templates for ICMPv4/v6 flows.
493 - Upon the receipt of a SIGHUP signal, ovs-vswitchd no longer reopens its
494 log file (it will terminate instead). Please use 'ovs-appctl vlog/reopen'
496 - Support for Linux kernels up to 3.14. From Kernel 3.12 onwards OVS uses
497 tunnel API for GRE and VXLAN.
498 - Added DPDK support.
499 - Added support for custom vlog patterns in Python
503 ---------------------
504 - Address prefix tracking support for flow tables. New columns
505 "prefixes" in OVS-DB table "Flow_Table" controls which packet
506 header fields are used for address prefix tracking. Prefix
507 tracking allows the classifier to skip rules with longer than
508 necessary prefixes, resulting in better wildcarding for datapath
509 flows. Default configuration is to not use any fields for prefix
510 tracking. However, if any flow tables contain both exact matches
511 and masked matches for IP address fields, OVS performance may be
512 increased by using this feature.
513 * As of now, the fields for which prefix lookup can be enabled
514 are: 'tun_id', 'tun_src', 'tun_dst', 'nw_src', 'nw_dst' (or
515 aliases 'ip_src' and 'ip_dst'), 'ipv6_src', and 'ipv6_dst'.
516 (Using this feature for 'tun_id' would only make sense if the
517 tunnel IDs have prefix structure similar to IP addresses.)
518 * There is a maximum number of fields that can be enabled for any
519 one flow table. Currently this limit is 3.
521 $ ovs-vsctl set Bridge br0 flow_tables:0=@N1 -- \
522 --id=@N1 create Flow_Table name=table0
523 $ ovs-vsctl set Bridge br0 flow_tables:1=@N1 -- \
524 --id=@N1 create Flow_Table name=table1
525 $ ovs-vsctl set Flow_Table table0 prefixes=ip_dst,ip_src
526 $ ovs-vsctl set Flow_Table table1 prefixes=[]
527 - TCP flags matching: OVS now supports matching of TCP flags. This
528 has an adverse performance impact when using OVS userspace 1.10
529 or older (no megaflows support) together with the new OVS kernel
530 module. It is recommended that the kernel and userspace modules
531 both are upgraded at the same time.
532 - The default OpenFlow and OVSDB ports will change to
533 IANA-assigned numbers in a future release. Consider updating
534 your installations to specify port numbers instead of using the
537 * The OpenFlow 1.1+ "Write-Actions" instruction is now supported.
538 * OVS limits the OpenFlow port numbers it assigns to port 32767 and
539 below, leaving port numbers above that range free for assignment
541 * ovs-vswitchd now honors changes to the "ofport_request" column
542 in the Interface table by changing the port's OpenFlow port
544 * The Open vSwitch software switch now supports OpenFlow groups.
545 - ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
546 diagram only if graphviz package was installed at the build time.
547 - Support for Linux kernels up to 3.11
549 The "show" command also displays mega flow mask stats.
551 * New command "ofp-parse-pcap" to dump OpenFlow from PCAP files.
552 - ovs-controller has been renamed test-controller. It is no longer
553 packaged or installed by default, because too many users assumed
554 incorrectly that ovs-controller was a necessary or desirable part
555 of an Open vSwitch deployment.
556 - Added vlog option to export to a UDP syslog sink.
558 * The "monitor" command can now monitor all tables in a database,
559 instead of being limited to a single table.
560 - The flow-eviction-threshold has been replaced by the flow-limit which is a
561 hard limit on the number of flows in the datapath. It defaults to 200,000
562 flows. OVS automatically adjusts this number depending on network
564 - Added IPv6 support for active and passive socket communications.
568 ---------------------
569 - The ovs-vswitchd process is no longer single-threaded. Multiple
570 threads are now used to handle flow set up and asynchronous
573 * Experimental support for OpenFlow 1.1 (in addition to 1.2 and
574 1.3, which had experimental support in 1.10).
575 * Experimental protocol support for OpenFlow 1.1+ groups. This
576 does not yet include an implementation in the Open vSwitch
578 * Experimental protocol support for OpenFlow 1.2+ meters. This
579 does not yet include an implementation in the Open vSwitch
581 * New support for matching outer source and destination IP address
582 of tunneled packets, for tunnel ports configured with the newly
583 added "remote_ip=flow" and "local_ip=flow" options.
584 * Support for matching on metadata 'pkt_mark' for interacting with
585 other system components. On Linux this corresponds to the skb
587 * Support matching, rewriting SCTP ports
588 - The Interface table in the database has a new "ifindex" column to
589 report the interface's OS-assigned ifindex.
590 - New "check-oftest" Makefile target for running OFTest against Open
591 vSwitch. See README-OFTest for details.
592 - The flow eviction threshold has been moved to the Open_vSwitch table.
593 - Database names are now mandatory when specifying ovsdb-server options
594 through database paths (e.g. Private key option with the database name
595 should look like "--private-key=db:Open_vSwitch,SSL,private_key").
596 - Added ovs-dev.py, a utility script helpful for Open vSwitch developers.
597 - Support for Linux kernels up to 3.10
599 * New "ofp-parse" for printing OpenFlow messages read from a file.
600 * New commands for OpenFlow 1.1+ groups.
601 - Added configurable flow caching support to IPFIX exporter.
602 - Dropped support for Linux pre-2.6.32.
603 - Log file timestamps and ovsdb commit timestamps are now reported
604 with millisecond resolution. (Previous versions only reported
608 v1.11.0 - 28 Aug 2013
609 ---------------------
610 - Support for megaflows, which allows wildcarding in the kernel (and
611 any dpif implementation that supports wildcards). Depending on
612 the flow table and switch configuration, flow set up rates are
613 close to the Linux bridge.
614 - The "tutorial" directory contains a new tutorial for some advanced
615 Open vSwitch features.
616 - Stable bond mode has been removed.
617 - The autopath action has been removed.
618 - New support for the data encapsulation format of the LISP tunnel
619 protocol (RFC 6830). An external control plane or manual flow
620 setup is required for EID-to-RLOC mapping.
622 * The "dec_mpls_ttl" and "set_mpls_ttl" actions from OpenFlow
623 1.1 and later are now implemented.
624 * New "stack" extension for use in actions, to push and pop from
626 * The "load" and "set_field" actions can now modify the "in_port". (This
627 allows one to enable output to a flow's input port by setting the
628 in_port to some unused value, such as OFPP_NONE.)
630 * New debugging commands "add-flow", "mod-flow", "del-flow".
631 * "dump-flows" now has a -m option to increase output verbosity.
632 - In dpif-based bridges, cache action translations, which can improve
633 flow set up performance by 80% with a complicated flow table.
634 - New syslog format, prefixed with "ovs|", to be easier to filter.
635 - RHEL: Removes the default firewall rule that allowed GRE traffic to
636 pass through. Any users that relied on this automatic firewall hole
637 will have to manually configure it. The ovs-ctl(8) manpage documents
638 the "enable-protocol" command that can be used as an alternative.
639 - New CFM demand mode which uses data traffic to indicate interface
642 v1.10.0 - 01 May 2013
643 ---------------------
644 - Bridge compatibility support has been removed. Any uses that
645 rely on ovs-brcompatd will have to stick with Open vSwitch 1.9.x
646 or adapt to native Open vSwitch support (e.g. use ovs-vsctl instead
648 - The maximum size of the MAC learning table is now configurable.
649 - With the Linux datapath, packets for new flows are now queued
650 separately on a per-port basis, so it should no longer be
651 possible for a large number of new flows arriving on one port to
652 prevent new flows from being processed on other ports.
654 * Previously ovs-vsctl would retry connecting to the database forever,
655 causing it to hang if ovsdb-server was not running. Now, ovs-vsctl
656 only tries once by default (use --retry to try forever). This change
657 means that you may want to remove uses of --timeout to avoid hangs
659 * Many "ovs-vsctl" database commands now accept an --if-exists option.
660 Please refer to the ovs-vsctl manpage for details.
662 - Experimental support for newer versions of OpenFlow. See
663 the "What versions of OpenFlow does Open vSwitch support?"
664 question in the FAQ for more details.
665 - The OpenFlow "dp_desc" may now be configured by setting the
666 value of other-config:dp-desc in the Bridge table.
667 - It is possible to request the OpenFlow port number with the
668 "ofport_request" column in the Interface table.
669 - The NXM flow_removed message now reports the OpenFlow table ID
670 from which the flow was removed.
672 - New support for the VXLAN tunnel protocol (see the IETF draft here:
673 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03).
674 - Tunneling requires the version of the kernel module paired with
675 Open vSwitch 1.9.0 or later.
676 - Inheritance of the Don't Fragment bit in IP tunnels (df_inherit)
677 is no longer supported.
678 - Path MTU discovery is no longer supported.
679 - CAPWAP tunneling support removed.
680 - Tunnels with multicast destination ports are no longer supported.
682 - The "dump-flows" and "del-flows" no longer require an argument
683 if only one datapath exists.
685 - New "vlog/disable-rate-limit" and "vlog/enable-rate-limit"
686 commands available allow control over logging rate limits.
687 - New "dpif/dump-dps", "dpif/show", and "dpif/dump-flows" command
688 that mimic the equivalent ovs-dpctl commands.
689 - The ofproto library is now responsible for assigning OpenFlow port
690 numbers. An ofproto implementation should assign them when
691 port_construct() is called.
692 - All dpif-based bridges of a particular type share a common
693 datapath called "ovs-<type>", e.g. "ovs-system". The ovs-dpctl
694 commands will now return information on that shared datapath. To
695 get the equivalent bridge-specific information, use the new
696 "ovs-appctl dpif/*" commands.
697 - Backward-incompatible changes:
698 - Earlier Open vSwitch versions treated ANY as a wildcard in flow
699 syntax. OpenFlow 1.1 adds a port named ANY, which introduces a
700 conflict. ANY was rarely used in flow syntax, so we chose to
701 retire that meaning of ANY in favor of the OpenFlow 1.1 meaning.
702 - Patch ports no longer require kernel support, so they now work
703 with FreeBSD and the kernel module built into Linux 3.3 and later.
704 - New "sample" action.
708 ------------------------
710 - Support for ipv6 set action.
711 - SKB mark matching and setting.
712 - support for Linux kernels up to 3.8
713 - FreeBSD is now a supported platform, thanks to code contributions from
714 Gaetano Catalli, Ed Maste, and Giuseppe Lettieri.
715 - ovs-bugtool: New --ovs option to report only OVS related information.
716 - New %t and %T log escapes to identify the subprogram within a
717 cooperating group of processes or threads that emitted a log message.
718 The default log patterns now include this information.
720 - Allow bitwise masking for SHA and THA fields in ARP, SLL and TLL
721 fields in IPv6 neighbor discovery messages, and IPv6 flow label.
722 - Adds support for writing to the metadata field for a flow.
724 - The tunneling code no longer assumes input and output keys are
725 symmetric. If they are not, PMTUD needs to be disabled for
726 tunneling to work. Note this only applies to flow-based keys.
727 - New support for a nonstandard form of GRE that supports a 64-bit key.
728 - Tunnel Path MTU Discovery default value was set to 'disabled'.
729 This feature is deprecated and will be removed soon.
730 - Tunnel header caching removed.
732 - Commands and actions that accept port numbers now also accept keywords
733 that represent those ports (such as LOCAL, NONE, and ALL). This is
734 also the recommended way to specify these ports, for compatibility
735 with OpenFlow 1.1 and later (which use the OpenFlow 1.0 numbers
736 for these ports for different purposes).
738 - Support requesting the port number with the "port_no" option in
739 the "add-if" command.
740 - ovs-pki: The "online PKI" features have been removed, along with
741 the ovs-pki-cgi program that facilitated it, because of some
742 alarmist insecurity claims. We do not believe that these claims
743 are true, but because we do not know of any users for this
744 feature it seems better on balance to remove it. (The ovs-pki-cgi
745 program was not included in distribution packaging.)
746 - ovsdb-server now enforces the immutability of immutable columns. This
747 was not enforced in earlier versions due to an oversight.
748 - The following features are now deprecated. They will be removed no
749 earlier than February 2013. Please email dev@openvswitch.org with
751 - Bridge compatibility.
753 - The autopath action.
754 - Interface type "null".
755 - Numeric values for reserved ports (see "ovs-ofctl" note above).
756 - Tunnel Path MTU Discovery.
757 - CAPWAP tunnel support.
758 - The data in the RARP packets can now be matched in the same way as the
763 ------------------------
764 *** Internal only release ***
765 - New FAQ. Please send updates and additions!
766 - Authors of controllers, please read the new section titled "Action
767 Reproduction" in DESIGN, which describes an Open vSwitch change in
768 behavior in corner cases that may affect some controllers.
770 - A new test utility that can create L3 tunnel between two Open
771 vSwitches and detect connectivity issues.
773 - New --sort and --rsort options for "dump-flows" command.
774 - "mod-port" command can now control all OpenFlow config flags.
776 - Allow general bitwise masking for IPv4 and IPv6 addresses in
777 IPv4, IPv6, and ARP packets. (Previously, only CIDR masks
779 - Allow support for arbitrary Ethernet masks. (Previously, only
780 the multicast bit in the destination address could be individually
782 - New field OXM_OF_METADATA, to align with OpenFlow 1.1.
783 - The OFPST_QUEUE request now reports an error if a specified port or
784 queue does not exist, or for requests for a specific queue on all
785 ports, if the specified queue does not exist on any port. (Previous
786 versions generally reported an empty set of results.)
787 - New "flow monitor" feature to allow controllers to be notified of
788 flow table changes as they happen.
789 - Additional protocols are not mirrored and dropped when forward-bpdu is
790 false. For a full list, see the ovs-vswitchd.conf.db man page.
791 - Open vSwitch now sends RARP packets in situations where it previously
792 sent a custom protocol, making it consistent with behavior of QEMU and
794 - All Open vSwitch programs and log files now show timestamps in UTC,
795 instead the local timezone, by default.
799 ------------------------
800 - kernel modules are renamed. openvswitch_mod.ko is now
801 openvswitch.ko and brcompat_mod.ko is now brcompat.ko.
802 - Increased the number of NXM registers to 8.
803 - Added ability to configure DSCP setting for manager and controller
804 connections. By default, these connections have a DSCP value of
805 Internetwork Control (0xc0).
806 - Added the granular link health statistics, 'cfm_health', to an
809 - Added support to mask nd_target for ICMPv6 neighbor discovery flows.
810 - Added support for OpenFlow 1.3 port description (OFPMP_PORT_DESC)
813 - Added the "dump-ports-desc" command to retrieve port
814 information using the new port description multipart messages.
816 - Added support for spawning ovs-test server from the client.
817 - Now ovs-test is able to automatically create test bridges and ports.
818 - "ovs-dpctl dump-flows" now prints observed TCP flags in TCP flows.
819 - Tripled flow setup performance.
820 - The "coverage/log" command previously available through ovs-appctl
821 has been replaced by "coverage/show". The new command replies with
822 coverage counter values, instead of logging them.
826 ------------------------
827 - Allow OFPP_CONTROLLER as the in_port for packet-out messages.
831 ------------------------
832 *** Internal only release ***
834 - LACP bonds no longer fall back to balance-slb when negotiations fail.
835 Instead they drop traffic.
836 - The default bond_mode changed from SLB to active-backup, to protect
837 unsuspecting users from the significant risks of SLB bonds (which are
838 documented in vswitchd/INTERNALS).
839 - Load balancing can be disabled by setting the bond-rebalance-interval
842 - Added support for bitwise matching on TCP and UDP ports.
843 See ovs-ofctl(8) for more information.
844 - NXM flow dumps now include times elapsed toward idle and hard
846 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
847 controllers more precise control over which OpenFlow messages they
848 receive asynchronously.
849 - New "fin_timeout" action.
850 - Added "fin_timeout" support to "learn" action.
851 - New Nicira action NXAST_CONTROLLER that offers additional features
852 over output to OFPP_CONTROLLER.
853 - When QoS settings for an interface do not configure a default queue
854 (queue 0), Open vSwitch now uses a default configuration for that
855 queue, instead of dropping all packets as in previous versions.
857 - Logging to console and file will have UTC timestamp as a default for
858 all the daemons. An example of the default format is
859 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
861 - The syntax of commands and options to set log levels was simplified,
862 to make it easier to remember.
863 - New support for limiting the number of flows in an OpenFlow flow
864 table, with configurable policy for evicting flows upon
865 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
866 for more information.
867 - New "enable-async-messages" column in the Controller table. If set to
868 false, OpenFlow connections to the controller will initially have all
869 asynchronous messages disabled, overriding normal OpenFlow behavior.
870 - ofproto-provider interface:
871 - "struct rule" has a new member "used" that ofproto implementations
872 should maintain by updating with ofproto_rule_update_used().
874 - The new option --timestamp causes the "monitor" command to print
875 a timestamp with every update.
876 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
880 ------------------------
882 - Added support for querying, modifying, and deleting flows
883 based on flow cookie when using NXM.
884 - Added new NXM_PACKET_IN format.
885 - Added new NXAST_DEC_TTL action.
887 - Added daemonization support to the monitor and snoop commands.
889 - The "find" command supports new set relational operators
890 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
891 - ovsdb-tool now uses the typical database and schema installation
892 directories as defaults.
893 - The default MAC learning timeout has been increased from 60 seconds
894 to 300 seconds. The MAC learning timeout is now configurable.
898 ------------------------
899 - Compatible with Open vSwitch kernel module included in Linux 3.3.
900 - New "VLAN splinters" feature to work around buggy device drivers
901 in old Linux versions. (This feature is deprecated. When
902 broken device drivers are no longer in widespread use, we will
903 delete this feature.) See ovs-vswitchd.conf.db(5) for more
906 - Added ability to match on IPv6 flow label through NXM.
907 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
908 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
909 - Added ability to modify ECN bits in IPv4.
910 - Added ability to modify TTL in IPv4.
912 - Don't require the "normal" action to use mirrors. Traffic will
913 now be properly mirrored for any flows, regardless of their
915 - Track packet and byte statistics sent on mirrors.
916 - The sFlow implementation can now usually infer the correct agent
917 device instead of having to be told explicitly.
919 - New "fdb/flush" command to flush bridge's MAC learning table.
921 - A new distributed testing tool that allows one to diagnose performance
922 and connectivity issues. This tool currently is not included in RH or
924 - RHEL packaging now supports integration with Red Hat network scripts.
926 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
927 to active-backup. SLB bonds carry significant risks with them
928 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
929 users from running into. Users are advised to update any scripts or
930 configuration which may be negatively impacted by explicitly setting
931 the bond mode which they want to use.
935 ------------------------
937 - Added an OpenFlow extension which allows the "output" action to accept
939 - Added an OpenFlow extension for flexible learning.
940 - Bumped number of NXM registers from four to five.
942 - New "version" command to determine version of running daemon.
943 - If no argument is provided for "cfm/show", displays detailed
944 information about all interfaces with CFM enabled.
945 - If no argument is provided for "lacp/show", displays detailed
946 information about all ports with LACP enabled.
948 - New "set-if" command to modify a datapath port's configuration.
950 - The software switch now supports 255 OpenFlow tables, instead
951 of just one. By default, only table 0 is consulted, but the
952 new NXAST_RESUBMIT_TABLE action can look up in additional
953 tables. Tables 128 and above are reserved for use by the
954 switch itself; please use only tables 0 through 127.
955 - Add support for 802.1D spanning tree (STP).
956 - Fragment handling extensions:
957 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
958 fields are made available for matching in fragments with
960 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
961 via "ip_frag" in ovs-ofctl).
962 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
963 fragment handling policy.
964 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
965 By default it remains compatible with the old version and other
966 standards-based implementations.
967 - Flow setups are now processed in a round-robin manner across ports
968 to prevent any single client from monopolizing the CPU and conducting
969 a denial of service attack.
970 - Added support for native VLAN tagging. A new "vlan_mode"
971 parameter can be set for "port". Possible values: "access",
972 "trunk", "native-tagged" and "native-untagged".
973 - test-openflowd has been removed. Please use ovs-vswitchd instead.
976 ------------------------
977 - New "ofproto" abstraction layer to ease porting to hardware
979 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
980 - Datapath support for Linux kernels up to 3.0.
982 - New "bundle" and "bundle_load" action extensions.
984 - Implement table unique constraints.
985 - Support cooperative locking between callers.
987 - New "-s" option for "show" command prints packet and byte
988 counters for each port.
990 - New "--readd" option for "replace-flows".
992 - New "show" command to print an overview of configuration.
993 - New "comment" command to add remark that explains intentions.
994 - ovs-brcompatd has been rewritten to fix long-standing bugs.
995 - ovs-openflowd has been renamed test-openflowd and moved into the
996 tests directory. Its presence confused too many users. Please
997 use ovs-vswitchd instead.
998 - New ovs-benchmark utility to test flow setup performance.
999 - A new log level "off" has been added. Configuring a log facility
1000 "off" prevents any messages from being logged to it. Previously,
1001 "emer" was effectively "off" because no messages were ever logged at
1002 level "emer". Now, errors that cause a process to exit are logged
1004 - "configure" option --with-l26 has been renamed --with-linux, and
1005 --with-l26-source has been renamed --with-linux-source. The old
1006 names will be removed after the next release, so please update
1008 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
1009 datapath/linux-2.6/compat-2.6 directories.
1011 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
1012 Please use the extensible match extensions instead.
1013 - Removed the Maintenance_Point and Monitor tables in an effort
1014 to simplify 802.1ag configuration.
1015 - Performance and scalability improvements
1018 v1.1.0 - 05 Apr 2011
1019 ------------------------
1020 - Ability to define policies over IPv6
1023 - Support for extensible match extensions to OpenFlow
1025 - Support for HFSC qdisc.
1026 - Queue used by in-band control can now be configured.
1028 - Kernel<->userspace interface has been reworked and should be
1029 close to a stable ABI now.
1030 - "Port group" concept has been dropped.
1031 - GRE over IPSEC tunnels
1033 - New active backup bonding mode.
1034 - New L4 hashing support when LACP is enabled.
1035 - Source MAC hash now includes VLAN field also.
1037 - Greatly improved handling of large flow tables
1039 - "show" command now prints full vport configuration.
1040 - "dump-groups" command removed since kernel support for
1041 port groups was dropped.
1043 - New commands for working with the new Managers table.
1044 - "list" command enhanced with new formatting options and --columns
1046 - "get" command now accepts new --id option.
1047 - New "find" command.
1049 - New "queue-stats" command for printing queue stats.
1050 - New commands "replace-flows" and "diff-flows".
1051 - Commands to add and remove flows can now read from files.
1052 - New --flow-format option to enable or disable NXM.
1053 - New --more option to increase OpenFlow message verbosity.
1054 - Removed "tun-cookie" command, which is no longer useful.
1055 - ovs-controller enhancements for testing various features.
1056 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
1057 bugs. New ovs-vlan-bug-workaround command for enabling and
1058 disabling a workaround for these driver bugs.
1060 - "Resubmit" actions now update flow statistics.
1061 - New "register" extension for use in matching and actions, via NXM.
1062 - New "multipath" experimental action extension.
1063 - New support for matching multicast Ethernet frames, via NXM.
1064 - New extension for OpenFlow vendor error codes.
1065 - New extension to set the QoS output queue without actually
1066 sending to an output port.
1067 - Open vSwitch now reports a single flow table, instead of
1068 separate hash and wildcard tables. This better models the
1069 current implementation.
1070 - New experimental "note" action.
1071 - New "ofproto/trace" ovs-appctl command and associated utilities
1072 to ease debugging complex flow tables.
1074 - Schema documentation now includes an entity-relationship diagram.
1075 - The database is now garbage collected. In most tables,
1076 unreferenced rows will be deleted automatically.
1077 - Many tables now include statistics updated periodically by
1078 ovs-vswitchd or ovsdb-server.
1079 - Every table now has an "external-ids" column for use by OVS
1081 - There is no default controller anymore. Each bridge must have its
1082 controller individually specified.
1083 - The "fail-mode" is now a property of a Bridge instead of a Controller.
1084 - New versioning and checksum features.
1085 - New Managers table and manager_options column in Open_vSwitch table
1086 for specifying managers. The old "managers" column in the
1087 Open_vSwitch table has been removed.
1088 - Many "name" columns are now immutable.
1090 - Dropped support for XenServer pre-5.6.100.
1091 - Dropped support for Linux pre-2.6.18.
1092 - Dropped controller discovery support.
1093 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
1094 Statistics reporting in the database is a rough equivalent.
1095 - Dropped the "corekeeper" package (now separate, at
1096 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
1097 - Performance and scalability improvements
1100 v1.1.0pre2 - 13 Sep 2010
1101 ------------------------
1104 v1.1.0pre1 - 31 Aug 2010
1105 ------------------------
1106 - OpenFlow 1.0 slicing (QoS) functionality
1107 - Python bindings for configuration database (no write support)
1108 - Performance and scalability improvements
1111 v1.0.1 - 31 May 2010
1112 --------------------
1113 - New "patch" interface type
1116 v1.0.0 - 15 May 2010
1117 --------------------
1118 - Configuration database with remote management
1121 - Support for XenServer 5.5 and 5.6
1122 - Performance and scalability improvements
1125 v0.99.2 - 18 Feb 2010
1126 ---------------------
1129 v0.99.1 - 25 Jan 2010
1130 ---------------------
1131 - Add support for sFlow(R)
1132 - Make headers compatible with C++
1135 v0.99.0 - 14 Jan 2010
1136 ---------------------
1137 - User-space forwarding engine
1140 v0.90.7 - 29 Nov 2009
1141 ---------------------
1142 - Add support for NetFlow active timeouts
1145 v0.90.6 - 6 Oct 2009
1146 --------------------
1149 v0.90.5 - 21 Sep 2009
1150 ---------------------
1151 - Generalize in-band control to more diverse network setups
projects / ovs.git / blob